import java.util.Scanner;
 
  class Findvowels {
 
    public static void main(String[] args) 
    {
        Scanner input = new Scanner(System.in);
 
 
        String word;
        System.out.print("Enter a String: ");
        
        int count =0;
 
 
        for(int i = 0; i < word.length(); i++)
        {
            if(word.charAt(i) == 'a' )
            {
                count++;
            }
            else if(word.charAt(i) == 'e' )
            {
                count++;
            }
            else if(word.charAt(i) == 'i')
            {
                count++;
            }
            else if(word.charAt(i) == 'o' )
            {
                count++;
            }
            else if(word.charAt(i) == 'u')
            {
                count++;
            }
        }
        System.out.println("Number of vowels: " + count);
 }
}